US4713490A - Process for the preparation of alkylthioacetamidines - Google Patents

Process for the preparation of alkylthioacetamidines Download PDF

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Publication number
US4713490A
US4713490A US06/802,799 US80279985A US4713490A US 4713490 A US4713490 A US 4713490A US 80279985 A US80279985 A US 80279985A US 4713490 A US4713490 A US 4713490A
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United States
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formula
mole
process according
stage
butyl
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US06/802,799
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English (en)
Inventor
Michael Arndt
Hans P. Sehnem
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Bayer AG
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Bayer AG
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Assigned to BAYER AKTIENGESELLSCHAFT, LEVERKUSEN, GERMANY, A CORP. OF GERMANY reassignment BAYER AKTIENGESELLSCHAFT, LEVERKUSEN, GERMANY, A CORP. OF GERMANY ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ARNDT, MICHAEL, SEHNEM, HANS P.
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C319/00Preparation of thiols, sulfides, hydropolysulfides or polysulfides
    • C07C319/14Preparation of thiols, sulfides, hydropolysulfides or polysulfides of sulfides

Definitions

  • the invention relates to a new process for the preparation of alkylthioacetamidines from chloroacetonitrile and alkyl mercaptans in the presence of an alcoholic solution of an alcoholate.
  • alkoxyalkyl derivatives can be prepared by reacting alcoholates with halogenoalkyl derivatives (see, for example, "Methoden der organischen Chemie” ["Methods of organic chemistry”], volume VI/3, page 26, Houben-Weyl-Muller, Thieme-Verlag Stuttgart). It is also known that alkylthioalkyl derivatives can be prepared from the corresponding alkyl mercaptans and halogenoalkyl derivatives (see, for example, “Methoden der organischen Chemie” ["Methods of organic chemistry”], volume IX, page 103, Houben-Weyl-Muller, Thieme-Verlag Stuttgart).
  • X represents halogen
  • n 0 or 1
  • reaction leading to the preparation of the compounds of the formula (I) is preferably carried out without isolating the intermediate stage (IV).
  • R represents alkyl having 1 to 6 carbon atoms
  • X represents chlorine or bromine
  • n 0 or 1.
  • R represents methyl, ethyl, n-propyl, i-propyl
  • n 0 or 1.
  • the compound of the formula (II), which is required as the starting material for carrying out the process according to the invention, is a compound generally known in organic chemistry.
  • the compounds of the formulae (III), (IV) and (V) are compounds generally known in organic chemistry.
  • Suitable diluents under the conditions of the reaction are inert solvents. These include, in particular, alcohols, such as methanol, ethanol and n-propanol. It is preferable to employ methanol as the solvent.
  • the process according to the invention is carried out in stage (a) in the presence of catalysts.
  • catalysts are preferentially suitable: alkali metal alcoholates, such as sodium methylate or ethylate and potassium methylate or ethylate. It is preferable to employ sodium methylate or ethylate as the catalyst.
  • the process according to the invention is carried out in stage (b) in the presence of acid acceptors.
  • Acid acceptors which are preferentially suitable are the alkali metal alcoholates mentioned above. It is preferable to employ sodium methylate or ethylate as the acid acceptor.
  • the diluent employed is methanol if sodium methylate is employed, and is ethanol if sodium ethylate is employed.
  • the process according to the invention is carried out in both stages in general at temperatures between -20° C. and +30° C., preferably between -10° C. and +20° C.
  • the reactions are preferably carried out in an inert gas atmosphere.
  • Argon or nitrogen is preferentially suitable as the inert gas.
  • the reaction is preferably carried out in the presence of nitrogen.
  • stage (b) is generally carried out under a pressure between 1 and 10 bar, preferably between 1 and 5 bar.
  • 0.01 to 0.2 mole, preferably 0.05 to 0.15 mol, more preferably 0.01 to 0.1 mole of catalyst and 1 to 2.00 moles, preferably 1 to 1.5 moles, of ammonium halide of the formula (III) are employed in stage (a) for 1 mole of chloroacetonitrile of the formula (II).
  • 1 mole of acid acceptor and 1 mole of alkyl mercaptan of the formula (V) are added to the reaction mixture for the further reaction corresponding to stage (b).
  • reaction product of the formula (I) can be worked up by customary methods. It is preferable to employ the reaction product in the next reaction without further working up, if desired after filtering off the inorganic salts.
  • the compounds of the formula (I) which can be prepared by the process according to the invention are important intermediate products for the synthesis of insecticides.
  • the substituted N,N-dimethyl-0-pyrimidinylcarbamic acid esters, compounds having a high insecticidal potency can be prepared from them (see, for example, German Offenlegungsschrift No. 2,928,185).

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
US06/802,799 1984-12-06 1985-11-27 Process for the preparation of alkylthioacetamidines Expired - Fee Related US4713490A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843444494 DE3444494A1 (de) 1984-12-06 1984-12-06 Verfahren zur herstellung von alkylthioacetamidinen
DE3444494 1984-12-06

Publications (1)

Publication Number Publication Date
US4713490A true US4713490A (en) 1987-12-15

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US06/802,799 Expired - Fee Related US4713490A (en) 1984-12-06 1985-11-27 Process for the preparation of alkylthioacetamidines

Country Status (7)

Country Link
US (1) US4713490A (da)
EP (1) EP0184110A3 (da)
JP (1) JPS61140559A (da)
DE (1) DE3444494A1 (da)
DK (1) DK564985A (da)
HU (1) HUT41380A (da)
ZA (1) ZA859317B (da)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100151506A1 (en) * 2008-12-12 2010-06-17 University Of South Carolina Chloroacetamidine Based Inhibitors and Activity Based Probes for the Protein Arginine Methytransferases

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2147400A (en) * 1937-04-02 1939-02-14 Sharples Solvents Corp Manufacture of hydrocarbon compounds containing sulphur
US2252723A (en) * 1938-05-11 1941-08-19 Ciba Pharm Prod Inc Halogen-alkyl amidines and process of preparing same
US3728389A (en) * 1969-12-15 1973-04-17 Burroughs Wellcome Co Biologically active amidines and their preparation
US3896125A (en) * 1963-01-24 1975-07-22 Ciba Geigy Ag O-hydroxyphenyl-s-triazines
US4323571A (en) * 1979-07-12 1982-04-06 Bayer Aktiengesellschaft Combating pests with 2-substituted-alkyl-5-substituted-N,N-dimethylcarbamic acid O-pyrimidin-6-yl esters

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2746057A1 (de) * 1977-10-13 1979-04-26 Basf Ag Neue phosphor(phosphon)-saeureester

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2147400A (en) * 1937-04-02 1939-02-14 Sharples Solvents Corp Manufacture of hydrocarbon compounds containing sulphur
US2252723A (en) * 1938-05-11 1941-08-19 Ciba Pharm Prod Inc Halogen-alkyl amidines and process of preparing same
US3896125A (en) * 1963-01-24 1975-07-22 Ciba Geigy Ag O-hydroxyphenyl-s-triazines
US3728389A (en) * 1969-12-15 1973-04-17 Burroughs Wellcome Co Biologically active amidines and their preparation
US4323571A (en) * 1979-07-12 1982-04-06 Bayer Aktiengesellschaft Combating pests with 2-substituted-alkyl-5-substituted-N,N-dimethylcarbamic acid O-pyrimidin-6-yl esters

Non-Patent Citations (7)

* Cited by examiner, † Cited by third party
Title
Conant, James Bryant et al., The Chemistry of Organic Compounds, 45h Ed., (1954), MacMillan Co., Publ. pp. 335 338. *
Conant, James Bryant et al., The Chemistry of Organic Compounds, 45h Ed., (1954), MacMillan Co., Publ. pp. 335-338.
Degering, Ed. F. An Outline of Organic Nitrogen Compounds, (1950), Univ. Lithoprinters, Ypsilanti, Mich., Publ. at p. 506. *
Kirk Othmer, Encyclopedia of Chemical Technology, 2nd Ed., (1970), vol. 20, at p. 211. *
Kirk-Othmer, Encyclopedia of Chemical Technology, 2nd Ed., (1970), vol. 20, at p. 211.
Quayle, Osborne R., J. Am. Chem. Society., (1942), vol. 64, pp. 226 230. *
Quayle, Osborne R., J. Am. Chem. Society., (1942), vol. 64, pp. 226-230.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100151506A1 (en) * 2008-12-12 2010-06-17 University Of South Carolina Chloroacetamidine Based Inhibitors and Activity Based Probes for the Protein Arginine Methytransferases
US8323918B2 (en) * 2008-12-12 2012-12-04 University Of South Carolina Chloroacetamidine based inhibitors and activity based probes for the protein arginine methytransferases

Also Published As

Publication number Publication date
DE3444494A1 (de) 1986-06-19
ZA859317B (en) 1986-08-27
EP0184110A2 (de) 1986-06-11
HUT41380A (en) 1987-04-28
DK564985A (da) 1986-06-07
EP0184110A3 (de) 1987-01-28
JPS61140559A (ja) 1986-06-27
DK564985D0 (da) 1985-12-05

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AS Assignment

Owner name: BAYER AKTIENGESELLSCHAFT, LEVERKUSEN, GERMANY, A C

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:ARNDT, MICHAEL;SEHNEM, HANS P.;REEL/FRAME:004489/0053

Effective date: 19851108

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
FP Lapsed due to failure to pay maintenance fee

Effective date: 19911215

STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362